# Changes to Japanese law on 12 June 2025

This is the Markdown twin of https://japanlaw.org/en/changes/2025-06-12. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp.

What changed on 12 June 2025 in 3 laws on this site: for each, the Act that amends it.

- Unfair Competition Prevention Act (不正競争防止法) — https://japanlaw.org/en/unfair-competition-prevention-act
  - Amended by Act Partially Amending the Code of Criminal Procedure, etc. to Respond to Advances in Information and Communications Technology, etc. (Act No. 39 of 2025) (情報通信技術の進展等に対応するための刑事訴訟法等の一部を改正する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000039 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000039)
    Listed with the law's amendments: https://japanlaw.org/en/unfair-competition-prevention-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/405AC0000000047/20250612_507AC0000000039
- Penal Code (刑法) — https://japanlaw.org/en/penal-code
  - Amended by Act Partially Amending the Code of Criminal Procedure, etc. to Respond to Advances in Information and Communications Technology, etc. (Act No. 39 of 2025) (情報通信技術の進展等に対応するための刑事訴訟法等の一部を改正する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000039 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000039)
    Listed with the law's amendments: https://japanlaw.org/en/penal-code/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/140AC0000000045/20250612_507AC0000000039
- Passport Act (旅券法) — https://japanlaw.org/en/passport-act
  - Amended by Act Partially Amending the Code of Criminal Procedure, etc. to Respond to Advances in Information and Communications Technology, etc. (Act No. 39 of 2025) (情報通信技術の進展等に対応するための刑事訴訟法等の一部を改正する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000039 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000039)
    Listed with the law's amendments: https://japanlaw.org/en/passport-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/326AC0000000267/20250612_507AC0000000039

Every day: https://japanlaw.org/en/changes

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## Sources

- Amendments and their dates: e-Gov (Digital Agency) (3 records)
- English names of the laws: Japanese Law Translation, Ministry of Justice (3 records)
- English titles of the amending laws: Written for this site with AI